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1.
Aesthetic Plast Surg ; 48(3): 361-368, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38129353

RESUMEN

BACKGROUND: Abdominoplasty is a common surgical procedure performed under general anesthesia, and although the use of TLA combined with subdural anesthesia has never been reported in abdominoplasty, it offers several benefits such as safe and effective local anesthesia and vasoconstriction. We outline our experience with the TLA technique for primary abdominoplasty over the last 7 years. METHODS: From 2014 to 2021, TLA and subdural anesthesia have been used in primary abdominoplasty surgeries for 106 patients. The TLA solution consisted of 25 mL of 2% lidocaine, 8 mEq of sodium bicarbonate, and 1 mL of epinephrine (1 mg/1 mL) diluted in 1000 mL of 0.9% saline solution. The solution was then injected with a 2-mm cannula into the subcutaneous adipose tissue in the suprafascial plane. The subdural anesthesia was performed at intervertebral level L1-L2 using Ropivacaine 15/18 mg in 4 ml. RESULTS: Patients aged from 32 to 75 years. The amount of tumescent solution infiltrated ranged between 500 and 1000 mL. Mean surgery time was 70 minutes, and recovery room time averaged at 240 minutes. Major complications related to the surgery were observed in 12.26% of patients, including eight hematomas and five seromas. Two patients experienced wound dehiscence, and no dystrophic scar formation was observed. Eventually, there was no need for a conversion to general anesthesia. CONCLUSIONS: Tumescent local anesthesia combined with subdural anesthesia is a highly effective and safe method for performing abdominoplasty. This technique has proven to be an excellent choice for primary abdominoplasty, providing significant benefits to patients and surgeons alike due to its safe administration, precise pain management during and after surgery, and minimal postoperative side effects. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Abdominoplastia , Anestesia Local , Humanos , Anestesia Local/métodos , Resultado del Tratamiento , Abdominoplastia/métodos , Lidocaína , Grasa Subcutánea
2.
Aesthetic Plast Surg ; 2024 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-39078425

RESUMEN

BACKGROUND: The integration of neck liposuction with FaceTite Manipulus Radiofrequency (RF) technology and buccal fat pad excision for enhanced neck rejuvenation promise heightened precision and efficacy in sculpting the neck and jawline. Neck liposuction, coupled with RF technology, provides controlled thermal energy for adipose tissue treatment and collagen remodeling, while buccal fat pad excision offers refined contouring of the lower face and neck. This integrated approach aims to optimize patient outcomes and advance the field of esthetic plastic surgery. METHODS: A prospective study was conducted from 2016 to 2023 on 80 consecutive patients who presented to the author's private clinic and required neck remodeling surgery for esthetic purposes. Patients were monitored and clinic appointments were scheduled at intervals of 0, 1, 3, 6 and 12 months post-treatment for evaluation. A tape measure recorded submental length at 1 and 6 months, and a satisfaction survey was administered one week before surgery and after six months. Physicians assessed improvement using a five-point scale for patient satisfaction and a four-point scale for overall improvement. RESULTS: All patients underwent successful RFAL treatment, consistently achieving satisfaction with the outcomes. The average reduction in submental length measured 23 mm during the 6-month follow-up period. Additionally, the removal of buccal fat pads played a pivotal role in facial slimming and enhancing the esthetics of the upper cheek region. CONCLUSIONS: The integration of neck liposuction with FaceTite RF technology and buccal fat pad excision offers a promising approach for enhanced neck rejuvenation and facial contouring. This combined method demonstrates heightened precision and efficacy in sculpting the neck and jawline, aiming to optimize patient outcomes and advance the field of esthetic plastic surgery. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

3.
Aesthetic Plast Surg ; 2024 Mar 08.
Artículo en Inglés | MEDLINE | ID: mdl-38459382

RESUMEN

BACKGROUND: Tumescent local anesthesia (TLA) involves the infusion of a saline solution containing lidocaine and epinephrine into tissues to achieve localized anesthesia and vasoconstriction. While the use of TLA in sub-glandular augmentation mammoplasty has been documented, we present a modified TLA approach for primary sub-muscular breast augmentation in transgender patients based on our experience over the past years. METHODS: Between the years 2014 and 2021, we performed primary sub-muscular breast augmentation on 20 transgender patients under TLA and conscious sedation. The tumescent solution consisted of 25 mL of 2% lidocaine, 8 mEq of sodium bicarbonate, and 1 mL of epinephrine (1 mg/1 mL) in 1000 mL of 0.9% saline solution. Initially, the solution was infiltrated between the pectoral fascia and the mammary gland, and subsequently, during the surgery, under the pectoralis major muscle. RESULTS: The average volume of tumescent solution infiltrated during TLA was 740 mL per breast. There were no reports of adrenaline or lidocaine toxicity, and no cases required a conversion to general anesthesia. Patients experienced no pain or discomfort during the preoperative infiltration or surgical procedure. Reoperations due to short-term complications never occurred. We observed a major complication rate of 5%, represented by 1 hematoma. Long-term complications comprised one case of implant dislocation and one occurrence of dystrophic scar formation. No cases of capsular contracture needing reoperation, asymmetry, and implant rupture occurred. In total, one individual (5%) requested larger implants. Follow-up time ranged from 30 days to 1 years. CONCLUSIONS: Overall, augmentation mammaplasty is a valuable choice for transgender women aiming to enhance their feminine characteristics and alleviate gender dysphoria. It is imperative for patients to conduct thorough research, grasp the potential pros and cons, and consult experienced healthcare professionals in transgender care. Additionally, tumescent local anesthesia (TLA) has proven to be a safe and efficient method for sub-muscular breast augmentation, providing effective pain control with minimal postoperative complications, resulting in high patient satisfaction. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

4.
Aesthet Surg J ; 44(6): 624-632, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38299427

RESUMEN

BACKGROUND: Several studies show how submuscular breast reconstruction is linked to animation deformity, shoulder dysfunction, and increased postoperative chest pain, when compared to prepectoral breast reconstruction. In solving all these life-impairing side effects, prepectoral implant pocket conversion has shown encouraging results. OBJECTIVES: The aim of this study was to propose a refinement of the prepectoral implant pocket conversion applied to previously irradiated patients. METHODS: We conducted a retrospective study on 42 patients who underwent previous nipple- or skin-sparing mastectomy and immediate submuscular reconstruction, followed by radiotherapy. We performed fat grafting sessions as regenerative pretreatment. Six months after the last fat graft, we performed the conversion, with prepectoral placement of micropolyurethane foam-coated implants. We investigated the preconversion and postconversion differences in upper limb range of motion, Upper Extremity Functional Index, and patient satisfaction with the breast and physical well-being of the chest. RESULTS: We reported a resolution of animation deformity in 100% of cases. The range of motion and the Upper Extremity Functional Index scores were statistically improved after prepectoral implant pocket conversion. BREAST-Q scores for satisfaction with the breast and physical well-being of the chest were also improved. CONCLUSIONS: The refined prepectoral implant pocket conversion is a reliable technique for solving animation deformity and improving quality of life in patients previously treated with submuscular reconstruction and radiotherapy.


Asunto(s)
Implantación de Mama , Neoplasias de la Mama , Satisfacción del Paciente , Músculos Pectorales , Humanos , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Adulto , Radioterapia Adyuvante/efectos adversos , Músculos Pectorales/cirugía , Implantación de Mama/efectos adversos , Implantación de Mama/instrumentación , Implantación de Mama/métodos , Mastectomía/efectos adversos , Implantes de Mama/efectos adversos , Resultado del Tratamiento , Anciano , Rango del Movimiento Articular , Tejido Adiposo/trasplante , Calidad de Vida
5.
J Surg Oncol ; 128(8): 1227-1234, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37592864

RESUMEN

BACKGROUND AND OBJECTIVES: Immediate breast reconstruction (IBR) represents a fundamental part in the management of patients receiving mastectomy. In recent years, there has been an increasing trend in the use of IBR in all age groups. The study aims were to evaluate the age-specific trend of IBR, and to discuss its effects in work organization at an Italian Breast Unit. METHODS: We searched for women diagnosed with breast cancer between 2010 and 2019, focusing on IBR rates in patients who received mastectomy. Age-specific trends were assessed using the Cochrane-Armitage test. Differences in operative times and hospital stay between women undergoing mastectomy + IBR (Ma + IBR) or mastectomy alone (Ma) were evaluated by Student's t test or χ2 test. RESULTS: Among 1915 patients, 62.4% underwent breast conserving surgery (BCS), and 37.6% mastectomy. Overall, rates of Ma + IBR increased from 32% in 2010 to 58% in 2019 (p < 0.001). Although rates of IBR rose in all age groups, the trend was significantly increased among patients aged 50-59 (p < 0.001), 60-69 (p < 0.0001), and 70-79 (p < 0.05). CONCLUSIONS: Rates of Ma + IBR have increased over years, especially among older women. Ma + IBR resulted in longer operative times and hospital stay than Ma alone. These findings imply that, in the near future, resources should be implemented to improve and strengthen the surgical activity of Breast Units, to support the increasing use of IBR in women of all age groups.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Humanos , Femenino , Anciano , Mastectomía/métodos , Neoplasias de la Mama/cirugía , Mamoplastia/métodos , Mastectomía Segmentaria , Factores de Edad , Estudios Retrospectivos
6.
Aesthetic Plast Surg ; 47(6): 2495-2501, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37314467

RESUMEN

BACKGROUND: Body contouring surgery is increasingly requested by patients, both for aesthetic and post-bariatric purposes. There has also been a rapid increase in demand for noninvasive aesthetic treatments. While brachioplasty is burdened by numerous complications and unsatisfactory scars, and conventional liposuction is unsuitable for all patients, nonsurgical arm remodeling performed with radiofrequency-assisted liposuction (RFAL) allows to effectively treat most of patients, regardless of the amount of fat and ptosis of the skin and avoiding surgical excision. METHODS: A prospective study was conducted on 120 consecutive patients who presented to the author's private clinic and required upper arm remodeling surgery for aesthetic purposes or after weight loss. Patients were classified according to the modified classification of El Khatib and Teimourian. Pre- and posttreatment upper arm circumferences were taken after 6 months of follow-up to assess the degree of skin retraction obtained by treating the arm with RFAL. A satisfaction questionnaire regarding the appearance of the arms (Body-Q upper arm satisfaction) was administered to all patients before surgery and after 6 months of follow-up. RESULTS: All patients were effectively treated with RFAL, and no cases required conversion to brachioplasty. The average reduction in arm circumference was 3.75 cm at 6 months follow-up, and patients' satisfaction increased from 35 to 87% posttreatment. CONCLUSIONS: Radio frequency is a valid tool to treat most patients with upper limbs skin laxity, with significant aesthetic results and a high degree of patient satisfaction, regardless of the degree of skin ptosis and lipodystrophy of the arm. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Brazo , Lipectomía , Humanos , Brazo/cirugía , Lipectomía/métodos , Satisfacción del Paciente , Estudios Prospectivos , Estudios Retrospectivos , Resultado del Tratamiento
7.
Aesthetic Plast Surg ; 47(5): 1931-1938, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37069350

RESUMEN

BACKGROUND: Tumescent local anesthesia (TLA) describes the practice of injecting a very dilute solution of local anesthetic combined with epinephrine and sodium bicarbonate into the tissue until it becomes firm and tense to obtain local anesthesia and vasoconstriction. The use of TLA in augmentation intramuscular gluteoplasty has never been described for implants positioning. Advantages of the TLA technique include a reduction in blood loss through epinephrine-induced vasoconstriction and hydrostatic compression from the tumescent effect. We describe TLA technique for primary intramuscular gluteal augmentation, reporting our experience during the last 5 years. METHODS: From 2017 to 2021, 20 patients underwent bilateral primary gluteal augmentation under TLA and conscious sedation. The tumescent solution was prepared with 25 mL of 2% lidocaine, 8 mEq of sodium bicarbonate, and 1 mL of epinephrine (1 mg/1 mL) in 1000 mL of 0.9% saline solution. The solution was infiltrated with a cannula inside the gluteus maximus muscle intra-operatively. RESULTS: The mean age of the patients was 39, 15 years. The average amount of tumescent solution infiltrated was 240 mL per gluteus. Operating time was 1 h and 40 min, and recovery room time averaged 240 min. Major surgery-related complications were found in 15% of patients (2 hematomas and 1 seroma) and minor complications were described in a total of 8 patients (4 wound dehiscence and 1 dystrophic scar formation). No signs of adrenaline nor lidocaine toxicity were reported and conversion to general anesthesia was never required. CONCLUSIONS: The tumescent local anesthesia technique represents a safe and efficacious technique for performing gluteal augmentation surgery with an intramuscular implant positioning. The advantages of this technique are safety, reasonable pain control during and after surgery and a low incidence of postoperative side effects due to general anesthesia avoidance. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Asunto(s)
Anestesia Local , Bicarbonato de Sodio , Humanos , Anestesia Local/métodos , Resultado del Tratamiento , Lidocaína , Epinefrina
8.
Microsurgery ; 41(1): 34-43, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32845534

RESUMEN

BACKGROUND: There is no consensus on the appropriate treatment of lymphedema. Proposed techniques include lymphaticovenous anastomosis (LVA), vascularized lymph nodes transfer (VLNT), and suction lipectomy (SL). The benefit of combined procedures has also been postulated. In this prospective study, a combined protocol is proposed as an alternative to single-procedure strategies. METHODS: Between January 2016 and October 2018, we enrolled patients with secondary lymphedema of lower limbs, stage II-III according to the International Society of Lymphology, progressive swelling and skin tonicity >60. Thirty-seven consecutive patients were dichotomized into group I, undergoing VLNT, and group II undergoing VLNT and LVA. Gastroepiploic lymphnode flap was harvested through laparoscopy, and in the same operation, LVAs were performed in group II on the basis of indocyanine green lymphography and patent blue findings. Two weeks later, SL was performed in all the patients. Patients were prospectively evaluated through clinical examination, circumference measurement, and skin tonicity. RESULTS: The average follow-up was 2 ± 0.8 years. The first consecutive 21 patients were treated with VLNT followed by SL. The next 16 patients underwent combined VLNT and LVA, followed by SL. A mean of 2.4 LVAs were performed. A significant difference in the postoperative circumference measurements was found overall (p < .05): 52.6 ± 18.9 above the knee, 42.9 ± 25 below the knee, 36.2 ± 37 at foot. The postoperative tonicity dropped by 12.7 ± 6.3% (p < .05). The episodes of cellulitis significantly decreased to 0.1 ± 0.3 (p < .05). CONCLUSIONS: LVA, VLNT, and SL can be integrated together in a combined approach, in synergy to enhance the outcomes.


Asunto(s)
Lipectomía , Vasos Linfáticos , Linfedema , Anastomosis Quirúrgica , Humanos , Ganglios Linfáticos/cirugía , Vasos Linfáticos/diagnóstico por imagen , Vasos Linfáticos/cirugía , Linfedema/cirugía , Estudios Prospectivos
9.
J Reconstr Microsurg ; 37(3): 201-207, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32871601

RESUMEN

BACKGROUND: The purpose of this study is to document the vascular anatomy of the free ulnar artery proximal perforator flap and to highlight the possibility of harvesting it based on the perforators originating from the posterior ulnar recurrent artery (PURA), to spare both the main axis of vascular supply to the hand. In addition, we present a case series of five patients treated for soft tissue defects of the hand with free ulnar artery proximal perforator flaps. METHODS: Ten specimens of anterior forearm were dissected in this study to register number and characteristics of ulnar perforators. The dissection was focused on the perforators originating from the larger branch of the ulnar artery, the PURA, at the proximal third of anteromedial forearm. The anatomical dissections were evaluated in relationship with clinical dissections performed during flap harvesting in five patients. RESULTS: In three of the specimens dissected, the proximal perforator originated from the PURA, and in the other seven specimens, it originated directly from the ulnar artery. Five cases of reconstruction of the hand were performed with success using the free ulnar artery proximal perforator flap, and in two cases, the perforator from the PURA was found and it was possible to raise the flap based on this branch of the ulnar artery. CONCLUSION: The free ulnar artery proximal perforator flap can be harvested in two different manners for the same skin island of the forearm. When possible, harvesting it form the PURA allows lengthening of the pedicle. In our experience, this flap presents many advantages such as thinness and hairlessness; it allows preservation of the ulnar neurovascular bundle with an acceptable donor site morbidity. LEVEL OF EVIDENCE: IV.


Asunto(s)
Colgajo Perforante , Procedimientos de Cirugía Plástica , Arteria Cubital , Disección , Antebrazo/cirugía , Mano/cirugía , Humanos , Arteria Cubital/cirugía
10.
Dermatology ; 235(1): 65-70, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30380550

RESUMEN

BACKGROUND/AIMS: Cherry angiomas (CAs) are one of the most common vascular manifestations of the skin. By and large, these benign lesions often only represent an aesthetic problem. In the literature, few authors have focused on the pathogenesis of these lesions, and some risk factors have been identified, such as the presence of cutaneous and non-skin neoplasias. In this study, the correlation between the distribution of CAs and breast cancer was investigated. METHODS: We carried out a study whereby 50 women with unilateral breast cancer and the presence of CAs on the anterior thoracic wall were evaluated, with a particular focus on the difference in the number of CAs between the two haemithoraces. The data was elaborated using the Wilcoxon signed-rank test in order to evaluate whether there was a statistical significance in the distribution of CAs. RESULTS: In 31 patients we found that the number of CAs was greater on the cancerous breast than on the contralateral one (p value <0.0001). This was confirmed both in the group of patients suffering from ductal breast cancer and in the group with early invasive breast tumours. CONCLUSION: It is not clear whether CAs develop prior to or following breast cancer, indicating the possibility that this cutaneous manifestation could take on a predictive, prognostic development or represent only an epiphenomenon. Further in-depth studies into the pathogenesis of CAs and the relationship with breast cancer could lead to noteworthy diagnostic-therapeutic advances.


Asunto(s)
Neoplasias de la Mama/complicaciones , Hemangioma/complicaciones , Neoplasias de la Mama/diagnóstico , Femenino , Hemangioma/diagnóstico , Humanos , Pronóstico , Pared Torácica
11.
Ann Plast Surg ; 80(4): 339-343, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29095190

RESUMEN

BACKGROUND: Placement of suction drainage in submuscular pockets is routinely performed in breast reconstruction. Days of drain permanence (DDP) are associated with hospital stay and related health care costs. The aims of this study are to retrospectively compare data related to DDP and total drainage volume between high and low vacuum suction drainage groups and to identify correlations with patient or surgery-related factors. METHODS: We retrospectively analyzed data of 100 patients undergoing immediate or delayed breast reconstruction with expanders and implants. We considered 2 groups depending on suction pressure applied by 2 different surgical teams: group A (number, 50 patients) with high vacuum suction and group B (number, 50 patients) with low vacuum suction. RESULTS: Days of drain permanence was not significantly different between group A and group B (P = 0.451). The same was found for total drainage volume (P = 0.183). The distribution of DDP was statistically different only between patients with or without intraoperative bleeding in group A (P = 0.005) and smoking or nonsmoking patients in group A (P = 0.045). Statistical significance was kept in multivariate regression. CONCLUSIONS: There is no significant difference in DDP and total drainage volume using low or high vacuum suction drainage in breast reconstruction. The only factors affecting drainage permanence were intraoperative filling of expander, smoking, and intraoperative bleeding. Therefore, we can reduce the DDP, avoiding overfilling of expander and using of high vacuum suction in nonsmoking patients and in patients with significant intraoperative bleeding.


Asunto(s)
Drenaje/métodos , Mamoplastia/métodos , Seroma/prevención & control , Adulto , Implantes de Mama , Drenaje/instrumentación , Femenino , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , Succión , Dispositivos de Expansión Tisular , Resultado del Tratamiento , Vacio
15.
Microsurgery ; 36(1): 37-41, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25641727

RESUMEN

BACKGROUND: According to recent studies, peripheral nerve decompression in diabetic patients seems to not only improve nerve function, but also to increase microcirculation; thus decreasing the incidence of diabetic foot wounds and amputations. However, while the postoperative improvement of nerve function is demonstrated, the changes in peripheral microcirculation have not been demonstrated yet. The aim of this study is to assess the degree of microcirculation improvement of foot after the tarsal tunnel release in the diabetic patients by using transcutaneous oximetry. PATIENTS AND METHODS: Twenty diabetic male patients aged between 43 and 72 years old (mean age 61.2 years old) suffering from diabetic peripheral neuropathy with superimposed nerve compression underwent transcutaneous oximetry (PtcO2) before and after tarsal tunnel release by placing an electrode on the skin at the level of the dorsum of the foot. Eight lower extremities presented diabetic foot wound preoperatively. Thirty-six lower extremities underwent surgical release of the tibialis posterior nerve only, whereas four lower extremities underwent the combined release of common peroneal nerve, anterior tibialis nerve, and posterior tibialis nerve. RESULTS: Preoperative values of transcutaneous oximetry were below the critical threshold, that is, lower than 40 mmHg (29.1 ± 5.4 mmHg). PtcO2 values at one month after surgery (45.8 ± 6.4 mmHg) were significantly higher than the preoperative ones (P = 0.01). CONCLUSIONS: The results of postoperative increase in PtcO2 values demonstrate that the release of the tarsal tunnel determines a relevant increase in microcirculation in the feet of diabetic patients.


Asunto(s)
Monitoreo de Gas Sanguíneo Transcutáneo , Neuropatías Diabéticas/cirugía , Pie/irrigación sanguínea , Microcirculación , Síndrome del Túnel Tarsiano/cirugía , Adulto , Anciano , Descompresión Quirúrgica/métodos , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Resultado del Tratamiento
16.
Ann Plast Surg ; 74(6): 718-21, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24149403

RESUMEN

BACKGROUND: The aim of this study was to evaluate the effects on adipocyte morphology of 2 techniques of fat harvesting and of fat purification in lipofilling, considering that the number of viable healthy adipocytes is important in fat survival in recipient areas of lipofilling. METHODS: Fat harvesting was performed in 10 female patients from flanks, on one side with a 2-mm Coleman cannula and on the other side with a 3-mm Mercedes cannula. Thirty milliliter of fat tissue from each side was collected and divided into three 10 mL syringes: A, B, and C. The fat inside syringe A was left untreated, the fat in syringe B underwent simple sedimentation, and the fat inside syringe C underwent centrifugation at 3000 rpm for 3 minutes. Each fat graft specimen was processed for examination under low-vacuum scanning electron microscope. Diameter (µ) and number of adipocytes per square millimeter and number of altered adipocytes per square millimeter were evaluated. Untreated specimens harvested with the 2 different techniques were first compared, then sedimented versus centrifuged specimens harvested with the same technique were compared. Statistical analysis was performed using Wilcoxon signed rank test. RESULTS: The number of adipocytes per square millimeter was statistically higher in specimens harvested with the 3-mm Mercedes cannula (P = 0.0310). The number of altered cells was statistically higher in centrifuged specimens than in sedimented ones using both methods of fat harvesting (P = 0.0080) with a 2-mm Coleman cannula and (P = 0.0050) with a 3-mm Mercedes cannula. Alterations in adipocyte morphology consisted in wrinkling of the membrane, opening of pore with leakage of oily material, reduction of cellular diameter, and total collapse of the cellular membrane. CONCLUSIONS: Fat harvesting by a 3-mm cannula results in a higher number of adipocytes and centrifugation of the harvested fat results in a higher number of morphologic altered cells than sedimentation.


Asunto(s)
Adipocitos/patología , Lipectomía/métodos , Grasa Subcutánea/trasplante , Adipocitos/trasplante , Catéteres , Centrifugación/efectos adversos , Femenino , Humanos , Lipectomía/efectos adversos , Lipectomía/instrumentación , Microscopía Electrónica de Rastreo , Grasa Subcutánea/patología
17.
J Transl Med ; 12: 117, 2014 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-24885594

RESUMEN

BACKGROUND: Alterations in key-regulator genes of disease pathogenesis (BRAF, cKIT, CyclinD1) have been evaluated in patients with multiple primary melanoma (MPM). METHODS: One hundred twelve MPM patients (96 cases with two primary melanomas, 15 with three, and 1 with four) were included into the study. Paired synchronous/asynchronous MPM tissues (N=229) were analyzed for BRAF mutations and cKIT/CyclynD1 gene amplifications. RESULTS: BRAF mutations were identified in 109/229 (48%) primary melanomas, whereas cKIT and CyclinD1 amplifications were observed in 10/216 (5%) and 29/214 (14%) tumor tissues, respectively. While frequency rates of BRAF mutations were quite identical across the different MPM lesions, a significant increase of cKIT (p<0.001) and CyclinD1 (p=0.002) amplification rates was observed between first and subsequent primary melanomas. Among the 107 patients with paired melanoma samples, 53 (49.5%) presented consistent alteration patterns between first and subsequent primary tumors. About one third (40/122; 32.8%) of subsequent melanomas presented a discrepant pattern of BRAF mutations as compared to incident primary tumors. CONCLUSIONS: The low consistency in somatic mutation patterns among MPM lesions from same patients provides further evidence that melanomagenesis is heterogeneous and different cell types may be involved. This may have implications in clinical practice due to the difficulties in molecularly classifying patients with discrepant primary melanomas.


Asunto(s)
Ciclina D1/genética , Melanoma/genética , Proteínas Proto-Oncogénicas B-raf/genética , Proteínas Proto-Oncogénicas c-kit/genética , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mutación
18.
Microsurgery ; 34(2): 149-52, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23996159

RESUMEN

Autologous flaps can be used in combination with prosthesis in postmastectomy breast reconstruction. The deep inferior epigastric perforator (DIEP) flap is considered the preferred choice among autologous tissue transfer techniques. However, in patients with a peculiar figure (moderately large breasts and large thighs with flat stomach), who cannot use their abdominal tissue, the transverse upper gracilis (TUG) flap with implant is investigated as a further option for breast reconstruction. This report presents a patient who underwent the TUG flap plus implant reconstruction. A bilateral skin-sparing mastectomy was performed removing 340 g for each breast. The volume of the TUG flaps was 225 g (left) and 250 g (right). Preoperative volumes were restored by placing under the TUG muscle a round textured implant. No complications occurred during the postoperative period both in the recipient and donor site and the outcomes of the procedure were good. In cases where the use of the DIEP flap is not possible because of past laparotomies or inadequate abdominal volume, the TUG flap plus implant may be considered as a valid alternative.


Asunto(s)
Mamoplastia/métodos , Colgajos Quirúrgicos , Adulto , Femenino , Humanos , Mastectomía , Músculo Esquelético/trasplante , Muslo
20.
Plast Reconstr Surg Glob Open ; 12(6): e5895, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38881959

RESUMEN

Background: Direct-to-implant (DTI) immediate breast reconstruction has proven to be an oncologically safe technique and linked to better overall results. The introduction of new surgical techniques has prompted us to develop an acellular dermal matrix fixation technique that reduces the rate of complications and implant loss. Methods: We retrospectively analyzed data from patients who underwent DTI prepectoral breast reconstruction with two different techniques of acellular dermal matrix fixation to the chest wall. Descriptive statistics were reported using frequencies and percentages for categorical variables, and means and SDs for continuous variables. Pearson chi-square test was used to compare differences in categorical variables. Univariable and multivariable logistic regression models were fitted to investigate the predictors of complications. Results: From October 2019 to March 2023, 90 DTI breast reconstructions were performed, 43 using the standard technique and 47 using the new technique. The new technique demonstrated a significant reduction of major complications (P = 0.010), namely seroma (13.9% versus 2.3%), skin necrosis (9.3% versus 2.3%), implant loss (7% versus 0%), wound dehiscence (9.3% versus 0%), and infection (4.7% versus 0%). Compared with the standard technique, the new one reduced the risk of complications by 76% (OR 0.24; 95% confidence interval 0.09-0.68; P = 0.007) and 73% (aOR 0.27; 95% confidence interval 0.08-0.92; P = 0.037), at univariable and multivariable regression models. No other significant predictor of complications was identified. Conclusions: The procedure performed with the proposed modality proved to be advantageous. Careful fixation of the prosthetic implant and the placement of two drains, were the keys to a drastic reduction in complications.

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